Hund's Rule  [ENDORSED]

(Polar molecules, Non-polar molecules, etc.)

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Tiffany Cao 1D
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Hund's Rule

Postby Tiffany Cao 1D » Sat Oct 21, 2017 3:58 pm

What is Hund's rule and how is it relevant to electron orbitals? What would happen if the orbitals had opposite spin?

Cynthia Tsang
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Re: Hund's Rule  [ENDORSED]

Postby Cynthia Tsang » Sat Oct 21, 2017 5:13 pm

Hund's Rule basically states that every orbital shell is to be occupied by an electron before any orbital is occupied with two electrons. Usually this means that one spin direction is occupied for all the orbital shells before the opposite spin direction occupies the orbital to fill the shells.

AnuPanneerselvam1H
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Re: Hund's Rule

Postby AnuPanneerselvam1H » Sat Oct 21, 2017 9:43 pm

Hund's Rule states that due to electron repulsion, electrons in the same subshell occupy different orbitals with parallel spin. This allows for the lowest possible energy state. There are no more than two electrons per orbital. If 2 electrons are in the same orbital they are spin paired.

Sandhya Rajkumar 1C
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Re: Hund's Rule

Postby Sandhya Rajkumar 1C » Sat Nov 04, 2017 4:31 pm

To add on to the previous reply, Pauli Exclusion Principle states that there can be no more than 2 electrons per orbital and that if 2 electrons are in the same orbital then they spin paired.

605011646
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Re: Hund's Rule

Postby 605011646 » Sat Nov 04, 2017 9:16 pm

what exactly does it mean for an electron to be be spin paired?

Ashley Fallon 3C
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Re: Hund's Rule

Postby Ashley Fallon 3C » Sun Nov 05, 2017 2:00 am

For an electron to be spin paired means that one electron within the orbital has a counterclockwise spin, while the other electron occupying that orbital has a clockwise spin.

nanditasundarapandian1D
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Re: Hund's Rule

Postby nanditasundarapandian1D » Sun Nov 05, 2017 10:50 am

Spins basically just shows which direction the electron is going in. Counter clockwise or clockwise.


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